74485573 has 2 divisors, whose sum is σ = 74485574. Its totient is φ = 74485572.

The previous prime is 74485559. The next prime is 74485597. The reversal of 74485573 is 37558447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74338884 + 146689 = 8622^2 + 383^2 .

It is an emirp because it is prime and its reverse (37558447) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74485573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74485273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37242786 + 37242787.

It is an arithmetic number, because the mean of its divisors is an integer number (37242787).

Almost surely, 2^74485573 is an apocalyptic number.

It is an amenable number.

74485573 is a deficient number, since it is larger than the sum of its proper divisors (1).

74485573 is an equidigital number, since it uses as much as digits as its factorization.

74485573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 470400, while the sum is 43.

The square root of 74485573 is about 8630.5024766812. The cubic root of 74485573 is about 420.7499318915.

The spelling of 74485573 in words is "seventy-four million, four hundred eighty-five thousand, five hundred seventy-three".